As a player, Alister has won 11 Professional Squash Association Tour titles and ranked as high as 12th in the world for squash. He has competed nationally and internationally for both England and Botswana, his birthplace. He won Botswana’s first international gold medal in squash with the Men’s Individual All-Africa Title in 2013 and was named Botswana Sportsman of the Year in 2013. He is also a Britain Under 23 champion and gold medalist in the World Junior Team Championships and Commonwealth Youth Games. Walker brings 16 years of professional squash experience to the athletes of Play Squash Academy. He previously served as assistant coach for the men’s and women’s squash teams at Columbia University and helped lead the squash program to its first Ivy league title in 2018. He began coaching while studying at Wycliffe College in England, and currently holds England Squash level three coaching certificate. Walker has helped organize exhibitions and tournaments around the world and worked with various community organizations in the U.S. to promote participation in squash. “I’m incredibly excited to be working with the players at Play Squash Academy and continuing to help grow the game of squash,” Walker said. “I’ve played and coached at the highest levels of the sport, and the opportunities available through this program are an unmatched resource for anyone looking to achieve their full potential on the court.”